The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 17, 2023
Filed:
May. 10, 2019
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Tomoki Takazoe, Kanagawa, JP;
Yoichi Masuda, Osaka, JP;
Kenji Yasu, Osaka, JP;
Yuji Unagami, Osaka, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01); H04L 9/30 (2006.01);
U.S. Cl.
CPC ...
H04L 9/3268 (2013.01); H04L 9/30 (2013.01);
Abstract
A GM acquires a first certificate revocation list designating revoked public key certificates and distributed from a certificate authority server. The GM generates a second certificate revocation list produced by extracting information on a plurality of home electric appliances from the first certificate revocation list. The GM restricts communication with a device for which the public key certificate is revoked, by distributing the second certificate revocation list generated to the plurality of home electric appliances.